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Finding the Fourth Proportional to 66,010.60, 99,015.90 and 48,295.90

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Solution

The fourth proportional to 66,010.60, 99,015.90 and 48,295.90 is: 72,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,010.60 : 99,015.90 = 48,295.90 : x
  2. Step 2: Convert to fraction form
    66,010.60/99,015.90 = 48,295.90/x
  3. Step 3: Cross multiply
    66,010.60x = 99,015.90 × 48,295.90
  4. Step 4: Simplify right side
    66,010.60x = 4,782,062,004.81
  5. Step 5: Solve for x
    x = 4,782,062,004.81/66,010.60
  6. Step 6: Final answer
    x = 72,443.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.